Grease and line the tray with baking paper.
Dry roast oats and muesli and keep aside.
Roast all the nuts (walnut, pistachio, almonds) and keep aside.
In a saucepan, over a medium heat, melt the honey and butter until well incorporated and runny.
Add cinnamon powder and mix well.
To this wet mixture, add all nuts give a good mix.
Add rolled oats, muesli, corn flakes, crushed oreo, pepita seeds and stir until combined.
Remove from the gas and transfer it to the lined tray and spread evenly.
Garnish with leftover nuts. Press down heavily onto the mixture so it is well squashed.
Place the tin into the fridge and refrigerate for about 1 hour until well set.
Once set, use the plastic wrap to carefully lift the muesli out. Slice the muesli into bars with a sharp knife and wrap individually in plastic wrap.
Enjoy the energy bars or Keep the muesli bars in the fridge.
